| Pedashenko, H; Apostolova, I; Boch, S; Ganeva, A; Janisová, M; Sopotlieva, D; Todorova, S; Ünal, A; Vassilev, K; Velev, N; Dengler, J: Dry grasslands of NW Bulgarian mountains: first insights into diversity, ecology and syntaxonomy, Tuexenia, 33, 309-346 (2013) |
